Experts suggest that wearing masks not only prevents the spread of coronavirus to others but also protects the mask wearer, potentially lessening the ...Read more

A Facebook post claimed that N95 masks are ineffective against COVID-19 because the virus particles are smaller than the masks filter. However, expert...Read more

Despite the easing of lockdowns, questions remain about whether the COVID-19 virus is airborne. The term refers to the transmission of a pathogen thro...Read more

Dr. Nancy Leung Hiu-lan, lead author of the highly cited studyRespiratory virus shedding in exhaled breath and efficacy of face masks, discusses the i...Read more

We studied 2780 adults in Hong Kong who received CoronaVac inactivated virus vaccine (Sinovac) and BNT162b2 mRNA vaccine (“Comirnaty”, BioNTech/Fosun ...Read more

We identified seasonal human coronaviruses, influenza viruses and rhinoviruses in exhaled breath and coughs of children and adults with acute respirat...Read more

Dr. Nancy Leung, an assistant professor at the School of Public Health at the University of Hong Kong, introduces a community research site where her ...Read more

Many locations around the world have used real-time estimates of the time-varying effective reproductive number (Rt) of COVID-19 to provide evidence o...Read more

Human respiratory virus infections lead to a spectrum of respiratory symptoms and disease severity, contributing to substantial morbidity, mortality a...Read more

This is an open-label randomised clinical trial of COVID-19 vaccine booster in Hong Kong organised by the School of Public Health, the University of H...Read more

Authorities have downplayed the possibility of the virus being airborne since the outbreak of the coronavirus crisis. However, this week, 239 scientis...Read more

The National Academy of Sciences (NAS) suggests that the novel coronavirus may spread through the air, not just through large droplets from coughs or ...Read more

We administered BNT162b2 as a third dose to 314 adults aged ≥30 years who had previously received 2 doses of inactivated vaccine. We collected blood s...Read more

香港大學的醫學院進行的一項研究證實，戴外科口罩可有效減低有病徵患者傳播季節性冠狀病毒及流感。研究發現，在11名戴口罩的季節性冠狀病毒患者中，無一呼出氣體內含病毒；相反，在10名未戴口罩的患者中，分別有3人及4人於飛沫或氣溶膠中驗出呼氣內含病毒。該研究的結果顯示，戴外科口罩有助減低季節性冠狀病毒和CO...Read more

Background: Limited data exist on antibody responses to mixed vaccination strategies that involve inactivated coronavirus disease 2019 (COVID-19) vacc...Read more

Guangdong province, located in South China, is an important economic hub with a large domestic migrant population and was among the earliest areas to ...Read more

Actuarial Society of Hong Kong interviewed Prof. Benjamin Cowling, Professor and Head of the Division of Epidemiology and Biostatistics, and Dr. Nancy...Read more

This is an open-label clinical trial on COVID-19 vaccine booster in Hong Kong organised by the School of Public Health, the University of Hong Kong. W...Read more

This is a large-scale community-based research study on COVID-19 vaccine effectiveness in Hong Kong organised by the School of Public Health, the Univ...Read more